Does light travel faster through water or glass?
1 answer:
You might be interested in
Answer: magnitude = 169.66N/C
direction = 8.6859°
Explanation:
Given from the question, we have that;
the Length of line of charge L = 0.808 m
Linear charge density λ = 3.35 × 10⁻⁶ C/m
charge q = -7.32 × 10⁻⁷ C
Coulombs force constant K = 1/(4π ε0) = 8.99 × 10⁹ N·m²/C².
NB. The picture uploaded gives a diagrammatic description of the problem.
From Pythagoras theorem we have,
tan Θ = 3.75 / (10.7-1.56)
Θ = 22.3076 °
recall that the Electric field at point P due to the finite wire is;
È = Kλ (L / b(L+b)) Î .............. (1)
where È rep the electric field.
from equation 1, we have that
È = 8.99 × 10⁹
where È rep the electric field.
from equation 1, we have that
È = 8.99 × 10⁹ × 3.35 × 10⁻⁶ (0.808/ 10.7(10.7 – 0.808))
È = 0.229905 × 10³ N/C Î
recall also that the Electric field at point -P due to -q is;
È = (8.99 × 10⁹ × 7.32 × 10⁻⁷) / ((3.75)² + (10.75-1.56)²) = 0.6742 × 10² N/C
where E = -E₁cosθÎ + E₁sinθĴ
E = - 0.62446 ×10²Î + 0.2562 ×10²Ĵ
The Resultant Electric charge Er is given as;
Er = 1.6771 ×10²Î + 0.2562 ×10²
Er = [√(1.6771)² + (0.2562)² ] × 10² = 169.66 N/C
∴ Magnitude = 169.66 N/C
Having gotten the magnitude, let us find the direction;
⇒ Direction = tan Ф = 0.25621/1.6771 = 8.6859°
Direction = 8.6859°
cheers i hope this helps
Answer:
Initial angular position of the disc is 3 radian
Explanation:
As we know that the angular acceleration of the disc is given as
initial angular speed is given as
now we know that angular displacement of the disc is given as
now we have